Patent US3553891A successfully refreshed from Google Patents.
US3553891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable doorjamb
Assignee: SUNSET IND Inc
•
Filing: 1968-10-24
•
Granted: 1971-01-12
•
Expires: 1988-10-24
Abstract
Abstract AN ADJUSTABLE DOORJAMB HAVING A PAIR OF ELONGATED, RELATIVELY SHIFTABLE MEMBERS EACH MEMBER HAS A PAIR OF SPACED SIDES AND THE SIDES OF ONE OF THE MEMBERS ARE YIELDABLE SO THAT THEY ARE MOVABLE INTO AND OUT OF FRICTIONAL ENGAGEMENT WITH THE SIDES OF THE OTHER MEMBER. WEDGE MEANS BETWEEN THE SIDES OF THE ONE MEMBER CAUSES ITS SIDES TO BE FORCED INTO FRICTIONAL ENGAGEMENT WITH THE SIDES OF THE OTHER MEMBER. THE WEDGE MEANS INCLUDES AN ACTUATOR ACCESSIBLE EXTERIORLY OF THE MEMBERS.
Inventors
- 👤 Ralph T Casebolt
- 👤 Arnold O Rystad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:08
CPC Classifications
E; E06; E06B; E06B1/00; E06B1/04; E06B1/12; E06B1/18; A; A47; A47K; A47K3/00; A47K3/28; A47K3/30; A47K3/36; A47K2003/307; E06B1/56; E06B1/60; E06B1/6069
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |